Sanitary bottle-cap.



OSCAR WESTOVEB, OF THE UNITED STATES ARMY.

SANITARY BOTTLE-CAP.

Application filed April 3, 1916. Serial No. 88,671.

To all whom it may concern: 7

Be it known that I, OSCAR Wnsrovnn, an oflicer of the United StatesArmy, at present stationed at Fort Gibbon, at thetown of Tanana, Alaska,have invented a new and Improved Sanitary Bottle-Cap, of which thefollowing is a full, clear, and exact description.

The object of the invention is to provide a new and improved sanitarybottle cap, more especially designed for use on babies milk bottles ofthe Hygeia type, to exclude dirt or germs, and at the same time topermit the entrance of air; but also for use on any glass bottle or jarwhose contents after preparation or first opening require suchprotection.

The invention consists of simple features and parts and combinations ofthe same, as will be fully described hereinafter and pointed out in theclaims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective view of the neck of a bottle provided with theimproved cap.

Fig. 2 is a top plan view of the cap.

Fig. 3 is a bottom plan View.

Fig. 4 is a transverse vertical section.

Fig. 5 is a front view of the glass base of the cap.

Figs. 6, 7 and 8 are sections on the lines 66, 7-7, and 88,respectively, of Fig. 5.

Fig. 9 is a plan view of the non-absorbent cotton wad.

Fig. 10 is a side View of the same.

Fig. 11 is a plan view of the reinforcing ring.

Fig. 12 is a side view of the same.

The improved bottle cap is provided with a base A, made of clear glassof the ordinary commercial pressed and annealed glass variety now in usefor domestic purposes; and a non-absorbent cotton wad B which isreinforced by and is attached to a paper cap ring C.

The base A has, atthe bottom, a cylindrical opening a which extendsupward for a distance equal to half the thickness of the bottle cap,where the opening then becomes enlarged, as at a, in diameter by atleast half an inch, thus affording a supporting rim of glass for thenon-absorbent cotton wad B The base A'is also provided with four lugs 0:projecting downward at the extremities of the axial diameters ofthebase, and of such thickness and length as will insure Specificationof Letters Patent. A Patented Aug. 14, 1917.

a snug fit over the sides of the bottle or jar on which the cap isto beused,'thus permitting the base A to rest evenly on the top of the bottleD but preventing it from slipping off. I A

The non-absorbent cotton wad B is a disk wad cut out of the ordinarywhite, nonabsorbent cotton padding which is now commercially handled insheet form, or manufactured of similar material; Its thickness should benot less than. one-sixteenth of an inch, ordinarily, and its diameterthe same I as that of the upper cylindrical portion of the opening inthe base A, thus affording is gummed or glued on the under side, as.

shown in Fig. 12, thus permitting secure attachment to the cotton wad B.

In manufacture, also, the non-absorbent cotton wad B, and the paper capring C, are actually gummed or glued together, as providedfor above, andin such manner that the wad with cap ring will give a snug fit whenplaced in proper position in the upper cylindrical portion of theopening in the base A. When so placed, and the bottle cap is fitted tothe bottle, it will readily be seen that the contents of the bottle areeffectively protected from dust and germs, and at the same time, areafforded air through the medium of the cotton wad B.

In order to more effectively provide against germs, it is intended thata large number of the wads with cap ring be provided for new one may beinserted whenever it is considered necessary to do so. Before insertinganew wad, however, it is essential that the glass base be sterilized inhot water. To this end, also, it is intended that the wads with cap ringshould be thoroughly use with each bottle cap, in order that asterilized and Wrapped in protective paper before being placed,rollithezllmrket.

It Will be seen that the device is a very simple one, durable inconstruction Where needed, and sufliciently durable and protective inother parts, and that it can be readily applied to bottles or jars, forthe purpose mentioned.

Having thus ,fully described my iinven- Vtion,-;I el;a i1 n as new andvdesire to f secure by FLetters Patent V y :l-A sa it y. me tle mp,sqlnpr ng b y hav ng e ent al pe ng enlar d a the t optof thebfl retoform; an annularishoulder,, an d a disk of non-absorbent porous 1na-:terial, h d nithe; open ng and S t o th shoulder, and a reinforcingring secured $0 the outer iface ofthe disk;at;th e,edgethere of, saidQdy sha n p d ng fi in i 1 engaging .outside of ,the ,neck of the gbottle.

In a sanitary bottle cap, interchangeable disks of ,non-absorbent porousmaterial,

and a base or body having an opening for receiving :the disks and havingmeans for engaging the bottle neck to hold the disk ;in!plaee,.1eachdisk having a reinioreingming on one face atthe edge thereof.

Abottlecapcomprising a body having a central opening enlarged at the topto form annular shoulder iintermediat'e :the

@SCAR "WESTOVER.

Wi ness s:

EHA L- .TWADDLE,

1 BA AN,

WILLIAM B. lBAD AN.

l'c' pi l .p thi r t nt my h li f ta j eif ijfivs em li ac byiae resing+ ""0onnfi P nt w sh n tmv

